How to make smoke?

[Per-Anders]

you can use geometry if you're careful with your shaders...

have a look at my site for an example :

http://www.peranders.com/c4d8

it's a little way down the page by now.

[flingster]

i'll second that...mdme_sadie method is very convincing.
you'll need ditools plugin..i think it was dishaper...
you'll love it.:buttrock:

[flingster]

smoke it shader...is another try...going.

[fxgogo]

I have had some success using this method:

Create a particle object and assign spheres to emit from the particle object. Now all the magic happens in the material you assign. Basically you need to create a falloff so that you dont see the edges of the spheres. This is best to do in the alpha channel of the material. Then in the transparency channel you assign a noise of your choice. This is a basic explanation of my method I use and just a start to the complexity you will need to get a nice looking smoke.

Good luck.

[Swissphil]

Thanks Fxgogo, that was my approach to this too (when I got the burning oil). But I didn't use a falloff in the alpha channel, instead I used a gradient to make the spehres invisible the higher they got.

I'll give you're method a shot .)

[AdamT]

I think fresnel would work better than falloff.

[flingster]

you'll probably need to turn up ray depth in render settings...especially if using smoke it...as you get artifacting around spheres
:shrug:

[Swissphil]

More experiments... and a result that is quite close to what I had in mind! :bounce: Its an emiter with spheres, as material for the speres simply a gradient in the alpha channel combined with cyclone shader. Actually rather simple once you figured it out...

http://homepage.mac.com/philippweimer/Rauch0100.jpg

you'll find a small animation of the smoke here (Divx 50.02)
Smoking pot (http://homepage.mac.com/philippweimer/Rauch.avi)

And here how it looks in the scene

http://homepage.mac.com/philippweimer/VampireThron02Normal.jpg

[flingster]

a lot me subtle than i thought you wanted...but very nice all the same..:thumbsup:

[JIII]

yeah I had imagined some sort of billowing smoke.

anyway it looks pretty sweet.

only problem with the picture is the bricks making that curve. they look a little bit like just a curve with a texture applied. not like a curve actually made with bricks.

[Swissphil]

OH well textures... I know they are my weak spot, and that arch will be replaced by something else.

To make a more intense smoke, I'd simply have to tell the emitter to produce more spheres,.

[bischoff_cj]

Originally posted by mdme_sadie
you can use geometry if you're careful with your shaders...

have a look at my site for an example :

http://www.peranders.com/c4d8

it's a little way down the page by now.

Zowie, what a resource. Thanks much mdme_sadie, a lot to learn from here.

[fxgogo]

Originally posted by Swissphil
[B]More experiments... and a result that is quite close to what I had in mind!

looking much better Swissphil. Have you thought of putting two or more emmitters there, that have slightly different materials and particle properties. I will add to the complexity greatly.

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